lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 1 | /* Conversion to and from ARMSCII-8 |
| 2 | Copyright (C) 1997-2015 Free Software Foundation, Inc. |
| 3 | This file is part of the GNU C Library. |
| 4 | Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. |
| 5 | |
| 6 | The GNU C Library is free software; you can redistribute it and/or |
| 7 | modify it under the terms of the GNU Lesser General Public |
| 8 | License as published by the Free Software Foundation; either |
| 9 | version 2.1 of the License, or (at your option) any later version. |
| 10 | |
| 11 | The GNU C Library is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | Lesser General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU Lesser General Public |
| 17 | License along with the GNU C Library; if not, see |
| 18 | <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #include <dlfcn.h> |
| 21 | #include <stdint.h> |
| 22 | |
| 23 | /* Definitions used in the body of the `gconv' function. */ |
| 24 | #define CHARSET_NAME "ARMSCII-8//" |
| 25 | #define FROM_LOOP from_armscii_8 |
| 26 | #define TO_LOOP to_armscii_8 |
| 27 | #define DEFINE_INIT 1 |
| 28 | #define DEFINE_FINI 1 |
| 29 | #define MIN_NEEDED_FROM 1 |
| 30 | #define MIN_NEEDED_TO 4 |
| 31 | #define ONE_DIRECTION 0 |
| 32 | |
| 33 | |
| 34 | static const uint16_t map_from_armscii_8[0xfe - 0xa2 + 1] = |
| 35 | { |
| 36 | 0x0587, 0x0589, 0x0029, 0x0028, 0x00bb, 0x00ab, 0x2014, 0x002e, |
| 37 | 0x055d, 0x002c, 0x002d, 0x058a, 0x2026, 0x055c, 0x055b, 0x055e, |
| 38 | 0x0531, 0x0561, 0x0532, 0x0562, 0x0533, 0x0563, 0x0534, 0x0564, |
| 39 | 0x0535, 0x0565, 0x0536, 0x0566, 0x0537, 0x0567, 0x0538, 0x0568, |
| 40 | 0x0539, 0x0569, 0x053a, 0x056a, 0x053b, 0x056b, 0x053c, 0x056c, |
| 41 | 0x053d, 0x056d, 0x053e, 0x056e, 0x053f, 0x056f, 0x0540, 0x0570, |
| 42 | 0x0541, 0x0571, 0x0542, 0x0572, 0x0543, 0x0573, 0x0544, 0x0574, |
| 43 | 0x0545, 0x0575, 0x0546, 0x0576, 0x0547, 0x0577, 0x0548, 0x0578, |
| 44 | 0x0549, 0x0579, 0x054a, 0x057a, 0x054b, 0x057b, 0x054c, 0x057c, |
| 45 | 0x054d, 0x057d, 0x054e, 0x057e, 0x054f, 0x057f, 0x0550, 0x0580, |
| 46 | 0x0551, 0x0581, 0x0552, 0x0582, 0x0553, 0x0583, 0x0554, 0x0584, |
| 47 | 0x0555, 0x0585, 0x0556, 0x0586, 0x055a |
| 48 | }; |
| 49 | |
| 50 | |
| 51 | /* First define the conversion function from ARMSCII-8 to UCS4. */ |
| 52 | #define MIN_NEEDED_INPUT MIN_NEEDED_FROM |
| 53 | #define MIN_NEEDED_OUTPUT MIN_NEEDED_TO |
| 54 | #define LOOPFCT FROM_LOOP |
| 55 | #define BODY \ |
| 56 | { \ |
| 57 | uint_fast8_t ch = *inptr; \ |
| 58 | \ |
| 59 | if (ch <= 0xa0) \ |
| 60 | { \ |
| 61 | /* Upto and including 0xa0 the ARMSCII-8 corresponds to Unicode. */ \ |
| 62 | *((uint32_t *) outptr) = ch; \ |
| 63 | outptr += sizeof (uint32_t); \ |
| 64 | } \ |
| 65 | else if (ch >= 0xa2 && ch <= 0xfe) \ |
| 66 | { \ |
| 67 | /* Use the table. */ \ |
| 68 | *((uint32_t *) outptr) = map_from_armscii_8[ch - 0xa2]; \ |
| 69 | outptr += sizeof (uint32_t); \ |
| 70 | } \ |
| 71 | else \ |
| 72 | { \ |
| 73 | /* This is an illegal character. */ \ |
| 74 | STANDARD_FROM_LOOP_ERR_HANDLER (1); \ |
| 75 | } \ |
| 76 | \ |
| 77 | ++inptr; \ |
| 78 | } |
| 79 | #define LOOP_NEED_FLAGS |
| 80 | #define ONEBYTE_BODY \ |
| 81 | { \ |
| 82 | if (c <= 0xa0) \ |
| 83 | /* Upto and including 0xa0 the ARMSCII-8 corresponds to Unicode. */ \ |
| 84 | return c; \ |
| 85 | else if (c >= 0xa2 && c <= 0xfe) \ |
| 86 | /* Use the table. */ \ |
| 87 | return map_from_armscii_8[c - 0xa2]; \ |
| 88 | else \ |
| 89 | return WEOF; \ |
| 90 | } |
| 91 | #include <iconv/loop.c> |
| 92 | |
| 93 | |
| 94 | static const unsigned char map_to_armscii_8[0x58a - 0x531 + 1] = |
| 95 | { |
| 96 | 0xb2, 0xb4, 0xb6, 0xb8, 0xba, 0xbc, 0xbe, 0xc0, |
| 97 | 0xc2, 0xc4, 0xc6, 0xc8, 0xca, 0xcc, 0xce, 0xd0, |
| 98 | 0xd2, 0xd4, 0xd6, 0xd8, 0xda, 0xdc, 0xde, 0xe0, |
| 99 | 0xe2, 0xe4, 0xe6, 0xe8, 0xea, 0xec, 0xee, 0xf0, |
| 100 | 0xf2, 0xf4, 0xf6, 0xf8, 0xfa, 0xfc, 0x00, 0x00, |
| 101 | 0x00, 0xfe, 0xb0, 0xaf, 0xaa, 0xb1, 0x00, 0x00, |
| 102 | 0xb3, 0xb5, 0xb7, 0xb9, 0xbb, 0xbd, 0xbf, 0xc1, |
| 103 | 0xc3, 0xc5, 0xc7, 0xc9, 0xcb, 0xcd, 0xcf, 0xd1, |
| 104 | 0xd3, 0xd5, 0xd7, 0xd9, 0xdb, 0xdd, 0xdf, 0xe1, |
| 105 | 0xe3, 0xe5, 0xe7, 0xe9, 0xeb, 0xed, 0xef, 0xf1, |
| 106 | 0xf3, 0xf5, 0xf7, 0xf9, 0xfb, 0xfd, 0xa2, 0x00, |
| 107 | 0xa3, 0xad |
| 108 | }; |
| 109 | |
| 110 | |
| 111 | /* Next, define the other direction. */ |
| 112 | #define MIN_NEEDED_INPUT MIN_NEEDED_TO |
| 113 | #define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM |
| 114 | #define LOOPFCT TO_LOOP |
| 115 | #define BODY \ |
| 116 | { \ |
| 117 | uint32_t ch = *((const uint32_t *) inptr); \ |
| 118 | \ |
| 119 | if (ch <= 0xa0) \ |
| 120 | /* Upto and including 0xa0 the ARMSCII-8 corresponds to Unicode. */ \ |
| 121 | *outptr = (unsigned char) ch; \ |
| 122 | else if (ch == 0xab) \ |
| 123 | *outptr = 0xa7; \ |
| 124 | else if (ch == 0xbb) \ |
| 125 | *outptr = 0xa6; \ |
| 126 | else if (ch >= 0x531 && ch <= 0x58a) \ |
| 127 | { \ |
| 128 | unsigned char oc = map_to_armscii_8[ch - 0x531]; \ |
| 129 | \ |
| 130 | if (oc == 0) \ |
| 131 | /* No valid mapping. */ \ |
| 132 | goto err; \ |
| 133 | \ |
| 134 | *outptr = oc; \ |
| 135 | } \ |
| 136 | else if (ch == 0x2014) \ |
| 137 | *outptr = 0xa8; \ |
| 138 | else if (ch == 0x2026) \ |
| 139 | *outptr = 0xae; \ |
| 140 | else \ |
| 141 | { \ |
| 142 | UNICODE_TAG_HANDLER (ch, 4); \ |
| 143 | \ |
| 144 | /* We have an illegal character. */ \ |
| 145 | err: \ |
| 146 | STANDARD_TO_LOOP_ERR_HANDLER (4); \ |
| 147 | } \ |
| 148 | ++outptr; \ |
| 149 | inptr += 4; \ |
| 150 | } |
| 151 | #define LOOP_NEED_FLAGS |
| 152 | #include <iconv/loop.c> |
| 153 | |
| 154 | |
| 155 | /* Now define the toplevel functions. */ |
| 156 | #include <iconv/skeleton.c> |